The Magic of SQL: The 4 Jacks —
The ‘SQL Wizard’ takes a database-leaning look at an old card trick, uses SQL to replicate it, and then shows some practical applications.

YouTube video

VividCortex - the New Face of Database Monitoring — VividCortex is the best way to see what is happening on your production servers. Unlike traditional monitoring, we measure and analyze the system’s work and resource consumption. This leads directly to better performance for IT as a whole, at reduced cost and effort.

Bye Bye MySQL and MongoDB. Guten Tag PostgreSQL —
For a long time MongoDB and MySQL had a leg up on Postgres, one for user experience and the other for well… replication. Postgres has come a long way since those days and now is seen as a replacement for both as shown here.